steelhead DCHP-1 (pre-1967)
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n.
a fish, Salmo gairdnerii, of the Pacific coast, which spawns in fresh water after two or three years in the sea. Also steelhead trout.
See also: iron-nose Kamloops (trout) rainbow (trout) sea trout (def. 2) steel (def. 3)
- The steelhead is sometimes erroneously regarded as a rainbow trout that has spent some time in the sea. Actually the reverse is true, the rainbow trout being a steelhead that spends its entire life in fresh water.